JPH11256821A - Form framework structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve work efficiency in assembly and execution of a form framework. SOLUTION: In a form framework structure making an earth retaining wall as a part of the form framework, holding devices 20 are respectively mounted to specific heights of a plurality of newel posts 11 in the earth retaining wall 10, and a bearing beam 30 is mounted to the holding devices 20 in a position adjustable manner in the horizontal direction. The bearing beam 30 is nearly parallel with a concrete finished surface S of a form 60 opposed to the earth retaining wall 10, and a plurality of separator bearing devices 40 are mounted to the bearing beam 30 in a position adjustable manner in the longitudinal direction of the bearing beam 30. Then, separators 50 for positioning and holding the form 60 are attached to the separator bearing devices 40 in a detachable manner.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a formwork frame structure in which a retaining wall is part of a formwork frame.

[0002]

2. Description of the Related Art Conventionally, as one of the frame structures, FIG.
Has a structure schematically shown in FIG. In this conventional formwork frame structure, a support 2 made of an L-section steel (equal angle angle steel) or a reinforcing steel is fixed to a main pillar (for example, H steel) 1a of a retaining wall 1 by welding, and a separator 3 is attached to the support 2. Are fixed at one end by welding.

[0003]

By the way, in the above-described conventional frame structure, the rebar assembly 4 is assembled / constructed at a position overlapping with the arrangement position of the separator 3 and the separator 3 is attached to the support 2. Two different operations such as welding (generally different operators) must be performed at the same time before assembling and constructing the formwork 5, in which case one operation is interrupted by the other. Work is extremely difficult. It is also possible to perform the welding work of the separator 3 to the support 2 and the assembling / constructing work of the formwork 5 in order before the assembling / constructing of the reinforcing bar assembly 4. Must be performed in a narrow space between the retaining wall 1 and the formwork 5 (with the separator 3 interposed), and the workability is extremely poor. After the assembly and construction of the reinforcing bar assembly 4, the work of welding the separator 3 to the support 2 and the assembly and construction of the formwork 5 can be sequentially performed. In this case, the reinforcing assembly 4 is not used. Disturbingly, the workability of welding the separator 3 to the support 2 is extremely poor.

Further, in the above-described conventional frame structure, the length of the separator 3 is set to the length of the support 2 in order to set the concrete surface S of the form 5 arranged opposite to the retaining wall 1 at the set position. It is necessary to adjust each time according to the mounting position (the main pillar 1a of the retaining wall 1 is not usually installed with high accuracy, and the mounting position of the support 2 is also inaccurate).
Complicated work is forced.

[0005]

Means for Solving the Problems The present invention (the invention according to claim 1) has been made to address the above-mentioned problem, and its object is to improve workability. In the formwork frame structure as a part of the above, a holding tool is respectively attached to a predetermined height of the plurality of master pillars on the retaining wall, and a support beam is attached to the retaining tool so that the position of the supporting beam can be adjusted in the horizontal direction. The support beam is made substantially parallel to the concrete finishing surface of the formwork arranged opposite to the wall, and a plurality of separator supports are attached to the support beam so as to be adjustable in the longitudinal direction of the support beam. It is characterized in that a separator for positioning and holding the mold is detachably attached to each separator support. In this case, it is desirable to provide a plurality of separator assembly parts on the separator support.

Further, the present invention (the invention according to claim 2)
The present invention has been made to address the above-described problem, and a problem thereof is to improve workability. In a formwork framing structure in which a retaining wall is part of a formwork framework, a plurality of main pillars in the retaining wall are provided. Attach holders to the heights, attach support beams to these holders so that their positions can be adjusted in the horizontal direction, and make the support beams substantially parallel to the concrete surface of the formwork that is placed opposite the retaining wall. In addition, by providing a plurality of separator assembling portions along the longitudinal direction of the support beam, the separator for positioning and holding the formwork can be horizontally detachably attached to each of the separator assembling portions. There are features.

[0007]

In the formwork frame structure according to the present invention (the invention according to claim 1), a reinforcing bar is assembled in a state in which the holder, the support beam, and the separator support are assembled in advance to the main pillar of the retaining wall. Can be assembled and constructed at a predetermined position on the solid,
Thereafter, the formwork can be assembled using a separator that can be attached to and detached from the separator support through the gap of the reinforcing bar assembly, so that the work of assembling the holding tool, the support beam, the separator support, etc. to the retaining wall and the reinforcing bar assembly can be performed. And the assembling / constructing work of the formwork can be performed as independent and easy works, respectively, and the workability can be improved. In addition, since the support beams can be made substantially parallel to the concrete surface of the formwork that is disposed opposite to the retaining wall, it is not necessary to adjust the length of the separator, which can also improve workability. it can. Further, in the practice of the present invention, when a plurality of separator assembly parts are provided in the separator support, by bypassing the separator so as not to interfere with the components of the rebar assembly during assembly and construction work of the formwork. It can be easily assembled,
Construction work can be improved.

In the formwork frame structure according to the present invention (invention according to claim 2), the holding member and the support beam are mounted on the main pillar of the retaining wall in advance, and the reinforcing bar assembly is positioned at a predetermined position. Assembly and construction can be performed, and then the formwork can be assembled using the separator that can be attached to and detached from the separator mounting part of the support beam through the gap of the reinforcing bar assembly. Can be performed as independent and easy operations, and the workability can be improved. In addition, since the support beams can be made substantially parallel to the concrete surface of the formwork that is disposed opposite to the retaining wall, it is not necessary to adjust the length of the separator, which can also improve workability. it can.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 to FIG. 10 show a first embodiment of the present invention. In the formwork frame structure of this embodiment, a plurality of main pillars 11 on a retaining wall 10 have a holder 2.
0, and the support beam 30 is
Are attached, and a separator support 40 is attached to each support beam 30.
Are attached, and a separator 50 is attached to each separator support 40. As shown in FIG. 2 and FIG. 3, the retaining wall 10 includes a plurality of main pillars (H steel) 11 erected deep underground and a retaining plate assembled between upper portions of the respective main pillars 11. 12 and is built up in the ground as is well known.

As shown in detail in FIGS. 4 to 7, the holding tool 20 is for holding the support beam 30 in a substantially horizontal state, and has a predetermined height of the plurality of master pillars 11 on the retaining wall 10. Each is attached to the. The holder 20 includes a base plate 21 fixed to the main pillar 11 of the retaining wall 10 by welding at a site, a nut 22 fixed to the base plate 21 by welding in advance at a factory, and a minus groove 23a at an end. A bolt 23 is mounted on the nut 22 so as to be able to move forward and backward, mounting holes 24a and 24b fitted into the bolt 23 and a screw 24c engaging with a screw 23b of the bolt 23 are provided. A U-shaped metal fitting 24 having a hook 24d to be fitted and capable of adjusting the position in the longitudinal direction of the bolt 23, and a pair of fixing arrows (wedge nails even with a wedge) for fixing the U-shaped metal fitting 24 to the bolt 23 25, and a support beam 30 having a mounting hole 26a fitted to the bolt 23 and cooperating with the U-shaped bracket 24.
, And a nut 27 for fixing the L-shaped bracket 26, and the support beam 3
0 is attached so that the position can be adjusted in the horizontal direction (the axial direction of the bolt 23). In addition, it is also possible to employ a flange nut (nut with a washer) instead of the base plate 21 and the nut 22.

The support beam 30 is made of a steel material having an L-shaped cross section (L-shaped steel,
(Even with equilateral angle steel), it has the required rigidity,
As shown in FIG. 2 and FIG. 3, the mold 60 extends along the retaining wall 10 in a state substantially parallel to the concrete surface S of the formwork 60 disposed opposite to the retaining wall 10. The separator support 40 has a separator 50 detachably attached thereto, and is attached to the support beam 30 so as to be adjustable in its longitudinal direction. As shown in detail in FIGS. 8 to 10, the separator support 40 has a preliminary hole 41 a and a nail insertion notch 41 b, and has a separator assembling portion (screw hole) 41 c to extend the length of the support beam 30. Mounting bracket 41 assembled so that position can be adjusted in the direction
And a fixing nail 42 for fixing the support fitting 41 to the support beam 30. The separator 50 is well-known except that it has a screw 51 at the end on the retaining wall 10 side. By using this, the mold 60 can be assembled in a well-known manner. In addition, the formwork 60 is comprised by the dam board 61, the upright flutter 62, the horizontal flutter 63, etc. as is well known.

In the first embodiment configured as described above, the holder 20, the support beam 30, and the separator support 4
0 can be assembled and constructed in a predetermined position of the reinforcing bar assembly 70 in a state where the reinforcing bar assembly 0 is previously assembled to the main pillar 11 of the retaining wall 10, and then detached from the separator support 40 through the gap of the reinforcing bar assembly 70. Since the formwork 60 can be assembled using the possible separator 50, the work of assembling the holding tool 20, the support beam 30, the separator support tool 40, and the like to the retaining wall 10 and the work of assembling and constructing the reinforcing bar assembly 70 are performed. Formwork 6
0 can be performed as independent and easy tasks, and workability can be improved.
In addition, since the support beam 30 can be made substantially parallel to the concrete surface S of the formwork 60 that is disposed opposite to the retaining wall 10, the length adjustment of the separator 50 is unnecessary, which also improves workability. Can be improved. Further, since the supporting beam 30 has no mechanically processed portion such as a screw hole processing, sufficient strength can be secured even with a small and lightweight steel material, and the supporting beam 30 can be configured to be small, lightweight and inexpensive. .

In the first embodiment, the retaining wall 10
Has been described in which the main pillar 11 of the retaining wall 10 is disposed substantially parallel to the concrete finish surface S of the formwork 60, but the main pillar 11 of the retaining wall 10 has the concrete finish of the formwork 60 as shown in FIG. When the holder 20 is disposed at a certain angle with respect to the surface S, the holder 20 is attached to the retaining wall 10 so that the bolt 23 of the holder 20 is substantially perpendicular to the concrete surface S of the formwork 60. If it is fixed to the column 11, the same operation and effect as in the first embodiment can be expected.

FIGS. 12 to 14 show a first modification of the separator support 40 shown in FIGS. 8 to 10. In this modification, the separator support 140 has a
41b with separator assembly (screw hole)
The support bracket 141 includes a support bracket 141 having a position 141c and capable of adjusting the position in the longitudinal direction of the support beam 130, and a fixing nail 142 for fixing the support bracket 141 to the support beam 130. In this modification, the support beam 1
Although the support beam (130) is made of a steel material (square steel) having a rectangular cross section, the support beam (130) may be implemented by using a steel material (square steel) having a rectangular cross section. It is necessary to determine the shape of the support fitting (141) according to (130).

FIGS. 15 to 17 show a second modification of the separator support 40 shown in FIGS. 8 to 10. The separator support 240 of this modification has a preliminary hole 241.
and a support fitting 241 having a pair of separator mounting parts (screw holes) 241c and 241c and having a pair of separator mounting parts (screw holes) 241c and a position adjustable in the longitudinal direction of the support beam 30. It is constituted by a screw 242 for fixing to the support beam 30. The support fitting 241 is formed by two members integrated by welding. The pair of separator assembly portions (screw holes) 241c, 241c are
The separators 50 are provided at intervals of about 20 mm so that the separators 50 can be easily assembled by bypassing without interfering with the constituent members.

FIGS. 18 and 19 show a third modification of the separator support 40 shown in FIGS.
The separator support member 340 of this modified example includes a pair of separator assembling portions (screw holes) 341c, 341c and a bolt insertion hole 341d, and a support bracket 341 assembled so as to be adjustable in the longitudinal direction of the support beam 30. , This support fitting 34
It is constituted by a locking bolt 342 and a nut 343 for fixing 1 to the support beam 30. The pair of separator assembly portions (screw holes) 341c, 341c are provided at intervals of about 20 mm so that the separator 50 can be easily assembled by bypassing without interfering with the components of the reinforcing bar assembly 70. . The supporting bracket 341 is made of a thin steel plate and a nut welded to the thin steel plate (separator mounting part 3).
41c).

FIGS. 20 to 24 show a second embodiment of the present invention. In the form frame structure of this embodiment, FIG.
A plurality of holding pillars 411 on the retaining wall 410
Are attached, and the support beams 43 are
0 is attached, a separator support 440 is attached to each support beam 430, and a separator 450 is attached to each separator support 440. In addition, earth retaining wall 4
10 and the separator 450 are the retaining wall 1 of the first embodiment.
0 and the separator 50 have substantially the same configuration.

As shown in detail in FIGS. 20 to 22, the holding member 420 holds the support beam 430 in a substantially horizontal state.
11 are attached at predetermined heights. The retainer 420 has a base plate 421 fixed to the main pillar 411 of the retaining wall 410 by welding at the site, a nut 422 fixed to the base plate 421 by welding in advance at a factory, and a minus groove 423a at an end. And a pair of nuts 4 screwed to the bolt 423 so as to be able to advance and retreat.
24, 425, and a support beam 430 is attached so as to be position-adjustable in the horizontal direction. In addition,
It is also possible to employ a flange nut (nut with a washer) instead of the base plate 421 and the nut 422.

The support beam 430 is a steel material having a U-shaped cross section, has a required rigidity, and is substantially parallel to a concrete surface (not shown) of a formwork disposed opposite to the retaining wall 410. It extends along the retaining wall 410. The separator support 440 has a separator 450 detachably attached thereto, and is attached to the support beam 430 so as to be adjustable in its longitudinal direction. As shown in detail in FIGS. 23 and 24, the separator support 440 includes a hook 441a that engages with the support beam 430.
And the separator 4
Nut for mounting 50 (separator assembly part) 4
A pair of support fittings 441 and 441, which are fixed by welding and are attached so as to be adjustable in position in the longitudinal direction of the support beam 430.
441, and a bolt 442 and a nut 443 for connecting the two support fittings 441 and 441 and fixing them to the support beam 430.

In the second embodiment configured as described above, a reinforcing bar assembly (not shown) is provided in a state where the holder 420, the support beam 430, and the separator support 440 are previously assembled to the main pillar 411 of the retaining wall 410. ) Can be assembled and constructed at a predetermined position, and then a mold (not shown) can be assembled by using a separator 450 that can be detachably attached to the separator support 440 through a gap in the reinforcing bar assembly. The work of assembling the fixture 420, the support beam 430, the separator support 440, etc. to the retaining wall 410, assembling / constructing work of the reinforcing bar assembly, and assembling / constructing work of the formwork can be performed as independent and easy work respectively. Therefore, workability can be improved. In addition, the support beam 43 is placed against the concrete surface of the formwork that is disposed opposite to the retaining wall 410.
0 can be substantially parallel, so the separator 45
Adjustment of the length of 0 is unnecessary, and this can also improve workability.

FIGS. 25 to 34 show a third embodiment of the present invention. In the form frame structure of this embodiment, FIGS.
A support beam 530 is provided to each of the plurality of main pillars 511 of the retaining wall constructed in the same manner as in the first embodiment by using the holders 520.
A separator 550 substantially the same as the separator 50 of the first embodiment is detachably attached to one of the plurality of separator attachment portions (female thread portions) 531 provided on the support beam 530. ing.

As shown in detail in FIGS. 25 to 27, the holding tool 520 is for holding the support beam 530 in a substantially horizontal state, and has a predetermined height of the plurality of master pillars 511 on the retaining wall. Respectively. This holder 52
Numeral 0 has a bolt 523 fixed to the main pillar 511 of the retaining wall by welding at the site, a notch 524a fitted to the bolt 523, and hooks 524b and 524c that engage with the support beam 530. A U-shaped bracket 524 (FIG. 30) assembled so that the position of the bolt 523 can be adjusted in the longitudinal direction.
32 to FIG. 32), and a pair of fasteners are driven between the U-shaped bracket 524 and the bolt 523 to bend the tip 525a downward as shown in FIGS. 27 and 28, thereby fixing the U-shaped bracket 524 to the bolt 523. Fixed arrow 525 (FIG. 33)
And FIG. 34), and a nut 527 that is screwed to the bolt 523 to restrict the movement of the support beam 530, the U-shaped bracket 524, and the like in the direction opposite to the retaining wall (to the right in FIG. 25). The beam 530 is mounted so as to be position-adjustable in the horizontal direction (the axial direction of the bolt 523). The U-shaped bracket 524 has a pair of protrusions 524 d for restricting the movement of each fixed arrow 525 and increasing the strength of the U-shaped bracket 524.
Are formed.

The support beam 530 is a steel material having an L-shaped cross section (equilateral angle steel), has a required rigidity, and is formed of concrete (not shown) of a formwork (not shown) opposed to the retaining wall as in the first embodiment. It extends along the retaining wall in a state substantially parallel to a finishing surface (not shown). The support beam 530 is provided with a plurality of separator assembly portions (female thread portions) 531 at predetermined intervals (for example, intervals of 20 to 100 mm).

In the third embodiment configured as described above, the holder 520 and the support beam 530 are connected to the main pillar 51 of the retaining wall.
1 can be assembled and constructed at a predetermined position of the reinforcing bar assembly (not shown) in the same manner as in the first embodiment, and then the supporting beam 530 can be passed through the gap of the reinforcing bar assembly. Since the formwork can be assembled using the separator 550 that can be attached to and detached from the separator assembling portion 531, the work of assembling the retainer 520 and the support beam 530 to the retaining wall, assembling / constructing work of the reinforcing bar assembly, and the formwork can be performed. Can be performed as independent and easy tasks, and workability can be improved. In addition, since the support beam 530 can be made substantially parallel to the concrete surface of the formwork that is disposed opposite to the retaining wall, it is not necessary to adjust the length of the separator 550, which also improves workability. be able to.

In the holder 520 of the third embodiment shown in FIGS. 25 to 27, the bolt 523 is fixed to the main pillar 511 of the retaining wall by welding at the site. As in the modification shown in FIG. 36, the bolt 623 can be screwed and fixed to the main pillar 611 of the retaining wall at the site. Note that the bolt mounting method shown in FIGS. 35 and 36 can be similarly implemented in the first and second embodiments.

The holder 620 shown in FIGS. 35 and 36
The mounting method of the bolt 623 to the main pillar 611 is shown in FIGS.
Main column 51 of bolt 523 of holder 520 shown in FIG.
The other configuration is substantially the same as the configuration of the holder 520 shown in FIGS. 25 to 27, except for the method of attachment to the bracket 1, and a tool (not shown) such as a wrench for rotating is engaged. A U-shaped bracket 62 having a two-sided width portion 623a in the middle portion
8 and bolt 62 fixed to main pillar 611 of the retaining wall
3 and a notch 624a (opened downward) fitted to the bolt 623, and the support beam 6
30 (having a plurality of separator mounting portions (female thread portions) 531 for mounting the separator 650) and having hooks 624b and 624c to be engaged with the bolt 623 so as to be adjustable in the longitudinal direction. U-shaped bracket 624 attached
A single wide fixing arrow 625 that is driven between the U-shaped bracket 624 and the bolt 623 to bend the tip portion downward and fixes the U-shaped bracket 624 to the bolt 623;
The support beam 630 is screwed to the bolt 623, and the U-shaped bracket 6
The support beam 63 is configured by a nut 627 that restricts the movement of the support beam 63 in the direction of the retaining wall (rightward in FIG. 35).
0 is attached so that the position can be adjusted in the horizontal direction (the axial direction of the bolt 623). As shown in FIG. 36, the U-shaped bracket 628 is assembled by pushing the earth retaining plate 12 to the left in the drawing to form a gap between the main pillar 611 and the bolt 623. It has a female screw hole 628a, and the opening width is appropriately determined according to the thickness of the end of the main pillar 611.

[Brief description of the drawings]

FIG. 1 is a vertical cross-sectional side view schematically showing a conventional frame structure of a mold.

FIG. 2 is a longitudinal sectional side view schematically showing a first embodiment of a formwork frame structure according to the present invention.

FIG. 3 is a schematic plan view of the first embodiment shown in FIG.

FIG. 4 is a detailed vertical sectional side view of the holder and the support beam shown in FIGS. 2 and 3;

FIG. 5 is a detailed partial front view of the holder and the support beam shown in FIGS. 2 and 3;

FIG. 6 is a detailed partial plan view of the holder and the support beam shown in FIGS. 2 and 3;

FIG. 7 is a sectional view taken along the line 7-7 in FIG. 4;

FIG. 8 is a detailed side view of the separator support shown in FIGS. 2 and 3.

FIG. 9 is a detailed front view of the separator support shown in FIGS. 2 and 3;

FIG. 10 is a detailed plan view of the separator support shown in FIGS. 2 and 3;

FIG. 11 is a partial plan view schematically showing a modified example of the holder shown in FIGS. 2 and 3;

FIG. 12 is a vertical sectional side view showing a first modification of the separator support and the support beam shown in FIGS. 8 to 10;

FIG. 13 is a partial front view showing a first modification of the separator support and the support beam shown in FIGS. 8 to 10;

FIG. 14 is a partial plan view showing a first modification of the separator support and the support beam shown in FIGS. 8 to 10;

FIG. 15 is a vertical sectional side view showing a second modified example of the separator support shown in FIGS. 8 to 10;

FIG. 16 is a partial front view showing a second modification of the separator support shown in FIGS. 8 to 10;

FIG. 17 is a partial plan view showing a second modification of the separator support shown in FIGS. 8 to 10;

FIG. 18 is a vertical sectional side view showing a third modified example of the separator support shown in FIGS. 8 to 10;

FIG. 19 is a partial front view showing a third modified example of the separator support shown in FIGS. 8 to 10;

FIG. 20 is a longitudinal sectional side view partially showing a second embodiment of the formwork frame structure according to the present invention.

FIG. 21 is a front view of the second embodiment shown in FIG.

FIG. 22 is a plan view of the second embodiment shown in FIG.

FIG. 23 is a side view of the separator support in the second embodiment.

FIG. 24 is a front view of a separator support according to the second embodiment.

FIG. 25 is a longitudinal sectional side view partially showing a third embodiment of the formwork frame structure according to the present invention.

FIG. 26 is a front view of the third embodiment shown in FIG.

FIG. 27 is a plan view of the third embodiment shown in FIG.

FIG. 28 is a longitudinal sectional view taken along line AA of FIG. 25.

FIG. 29 is a longitudinal sectional view taken along line BB of FIG. 25.

30 is a front view of the U-shaped bracket shown in FIGS. 25 to 27. FIG.

FIG. 31 is a side view of the U-shaped bracket shown in FIGS. 25 to 27;

32 is a plan view of the U-shaped bracket shown in FIGS. 25 to 27. FIG.

FIG. 33 is a front view of the fixed arrow shown in FIGS. 25 to 27;

FIG. 34 is a side view of the fixed arrow shown in FIGS. 25 to 27;

FIG. 35 is a longitudinal sectional side view showing a modification of the third embodiment shown in FIGS. 25 to 27;

FIG. 36 is a plan view of the modification shown in FIG. 35;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Retaining wall, 11 ... Main pillar, 12 ... Retaining plate, 20 ... Holder, 30 ... Support beam, 40 ... Separator support, 50 ...
Separator, 60: Formwork, 70: Reinforcement assembly, S: Concrete surface, 511: Main pillar of retaining wall, 520: Holder, 530: Support beam, 531: Separator assembly part,
550: separator, 611: pillar of earth retaining wall, 620
... Holders, 630... Support beams, 631... Separator assembly parts, 650.

Claims (3)

[Claims] In a formwork framing structure in which a retaining wall is part of a formwork skeleton, holding members are respectively attached to predetermined heights of a plurality of main pillars on the retaining wall, and a support beam is horizontally attached to the holding members. The support beam is mounted so as to be adjustable in position, the support beam is made substantially parallel to the concrete surface of the formwork disposed opposite the retaining wall, and a plurality of separator supports are attached to the support beam in the longitudinal direction of the support beam. A formwork framing structure characterized in that a separator for positioning and holding the formwork is detachably attached to each of the separator supports by being mounted so as to be adjustable in the direction. 2. The mold frame structure according to claim 1, wherein a plurality of separator mounting portions are provided on the separator support. 3. A formwork framing structure in which an earth retaining wall is part of a formwork skeleton, wherein holding members are respectively attached to predetermined heights of a plurality of master pillars on the earth retaining wall, and a support beam is horizontally attached to the holding members. The support beam is attached so as to be adjustable in position, the support beam is made substantially parallel to the concrete finish surface of the formwork disposed opposite to the retaining wall, and a plurality of separators are attached to the support beam along the longitudinal direction. And a separator for positioning and holding the formwork is detachable in a horizontal direction from each of the separator assembling parts.